O. corniculata may be confused with a number of other weedy yellow-flowered Oxalis species. Oxalis pes-caprae L. is a perennial developing from a bulb, and has much larger yellow flowers about 2 cm across. O. dillenii Jacq, (O. stricta non L.) has similar flowers and foliage but is differing in following ways: not rooting on the nodes of the stem; hairs on the stem are simple, apressed; in fruit, the pedicels are reflected with capsules patent; leaves are always green and the ridges on the seed are irregular and one side of the ridges is more or less whitish. O. stricta L. (O. fontana Bunge, O. europaea Jord.) in fruit, have erect to patent pedicels, and has long, more celled hairs mixed with short apressed hairs on the stems. The base of the petioles is exstipulate and bearing long, more celled (glandulose) hairs.